Firmness (Calming levels)

The firmness (calming levels) can be selected separately for the left and right sides of the bed. The specifications refer to a top view of the bed from the foot of the bed. During assembly, the installer can swap the sides upon request.&

The firmness level describes how much the water in the bed is stabilized. The higher the firmness level (F-level), the firmer and more stable the lying sensation. Our recommendations are based on many years of experience, but are always subjective—because personal perception and sleeping habits play a significant role. 

Overview of firmness levels: 

F1 – soft (30% damping)
Recommended for lighter individuals or experienced waterbed sleepers. Oscillation time approx. 8 seconds. Very responsive and soft sleeping experience.&

F2 – medium (50% damping)
Recommended for people weighing approx. 50–75 kg. Oscillation time approx. 5 seconds. Balanced ratio between movement and stability. 

F4 – firm (90% damping)
Recommended for people weighing approx. 90 kg or more. Oscillation time approx. 1 second. Very calm and stable lying sensation. 

F6 – full (98% stabilization)
Recommended for people weighing approx. 120 kg or more, or for those who prefer a very firm lying surface. Water movement is barely noticeable. 

Gel (flexibly adjustable)
Gel is a special variant where the firmness can be adjusted at any time. By adding a saline solution, the gel structure can be liquefied again and readjusted. This ensures that the viscosity of the gel mattress remains flexibly adjustable even after many years. This is the key difference from a classic waterbed, whose firmness is permanently set once the comfort level is selected.

It is important to note that heating is not included when selecting a gel mattress. This must be ordered separately if needed.